JJ Johnson

Mage 20GAMNMRORSEABSCSSCUOFM

39 plausible swims · 7 meets · 2021-08-10 → 2026-07-23

Personal records

EventCourseBest CutDateMeet
50 Freestyle LCM 23.45 Futures ✓+0.16s to US Open 2025-06-07 2025 National Championshipsvenue
100 Freestyle LCM 51.76 Futures ✓+0.87s to US Open 2025-05-16 2025 MN STRM Spring Startupvenue
200 Freestyle LCM 2:12.70 +11.81s to Sectionals 2025-05-30 2025 MN WOLF HUFF N PUFF INVITEvenue
50 Butterfly LCM 23.95 Nationals ✓ 2026-07-23 2026 GA LC Senior State Championshipsvenue
100 Butterfly LCM 52.81 Nationals ✓ 2025-06-05 2025 National Championshipsvenue
200 Butterfly LCM 1:58.42 Nationals ✓ 2025-06-03 2025 National Championshipsvenue

National cuts (Sectionals → Nationals) are the current-season meet qualifying times for the swimmer's zone and age group; ✓ marks the hardest cut already achieved.

PR splits

100 Freestyle LCM 51.76

24.91
26.85

Front half 24.91s · back half 26.85s

200 Freestyle LCM 2:12.70

23.60
38.78
36.27
34.05

Front half 62.38s · back half 70.32s

100 Butterfly LCM 52.81 RT 0.65s

24.38
28.43

Front half 24.38s · back half 28.43s

200 Butterfly LCM 1:58.42 RT 0.65s

26.21
29.61
30.67
31.93

Front half 55.82s · back half 62.60s

Reaction time

fastest 0.61s average 0.653s slowest 0.68s 7 electronic starts

Start reaction over time faster starts higher

From electronically-timed starts only (~2% of corpus swims carry a reaction time). PRs with a recorded reaction show an RT chip in the splits section above.

Swim history

Every recorded swim, newest first
DateEventCourse TimeAge RoundMeet

Individual swims with a recorded date and time — including disqualifications — plus reconstructed relay legs (marked). Assembled in the browser from this page’s data.

Progression

Faster times are higher. One card per event, all courses & history.

50 Freestyle LCM 23.45 7 swims
100 Freestyle LCM 51.76 6 swims
200 Freestyle LCM 2:12.70 1 swim
50 Butterfly LCM 23.95 6 swims
100 Butterfly LCM 52.81 10 swims
200 Butterfly LCM 1:58.42 9 swims